A wind speed testing device for FFU fan

Abstract

The utility model discloses a kind of wind speed testing devices of FFU fan, it is related to FFU fan technical field, including placing plate, the bottom of placing plate is fixedly installed with four support legs, two adjacent support legs are fixedly connected by connecting column, two sliding mechanisms are installed on four connecting columns, the sliding direction of two sliding mechanisms is perpendicular;Two sliding mechanisms are installed with same L-shaped plate, the bottom of L-shaped plate is fixedly installed with mounting plate.The wind speed testing device of FFU fan of the application can flexibly adjust the horizontal position of anemometer probe by mutually perpendicular double sliding mechanisms, adapt to the air outlet testing needs of different specifications FFU fan;Limiting mechanism in mounting pipe can firmly fix handheld rod, avoid the influence of data accuracy caused by probe shaking during testing process, and mounting pipe can be conveniently rotated by fixing mechanism, probe can be taken and placed without lifting fan, and operation is more labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of FFU (Fan Filter Unit) fan technology, and in particular to a wind speed testing device for an FFU fan. Background Technology

[0002] In the production, installation, and operation and maintenance of FFUs (Fan Filter Units), wind speed testing is a crucial step in evaluating their air delivery performance and ensuring the stability of airflow in clean environments. It directly affects whether cleanrooms (such as hospital operating rooms and electronics factories) meet cleanliness standards. Currently, FFU wind speed testing mostly relies on handheld anemometers or fixed testing racks. The testing device needs to be precisely aligned with the FFU outlet to obtain wind speed data for different areas, providing a basis for FFU airflow adjustment and troubleshooting. Therefore, the adaptability and ease of operation of the testing device are core factors affecting testing efficiency.

[0003] On the one hand, the lack of a flexible probe position adjustment structure means that testing can only be performed at fixed points at the FFU outlet, making it difficult to collect wind speed data multiple times and in multiple dimensions in different areas of the outlet according to testing requirements, resulting in incomplete test results. On the other hand, since the probe needs to be placed close to the FFU outlet, when the probe malfunctions or needs to be replaced, the existing device cannot directly remove or place the probe, often requiring the FFU fan to be lifted first, which is cumbersome and laborious. To address this issue, we propose an FFU fan wind speed testing device. Utility Model Content

[0004] The purpose of this application is to provide a wind speed testing device for an FFU fan to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a wind speed testing device for an FFU fan, comprising a placement plate, four support legs fixedly installed on the bottom of the placement plate, two adjacent support legs being fixedly connected by connecting columns, and two sliding mechanisms installed on the four connecting columns, the sliding directions of the two sliding mechanisms being perpendicular to each other; The same L-shaped plate is mounted on both sliding mechanisms. A mounting plate is fixedly mounted on the bottom of the L-shaped plate. A rotating shaft is rotatably mounted on the side of the mounting plate. A mounting tube is fixedly mounted on one end of the rotating shaft. A fixing mechanism is mounted on the mounting tube. The fixing mechanism is installed in conjunction with the L-shaped plate. An anemometer body is provided on one side of the placement plate. An anemometer probe is provided on the anemometer body. A handheld rod is fixedly installed at the bottom of the anemometer probe. One end of the handheld rod extends into the mounting tube. A limiting mechanism for limiting the handheld rod is installed inside the mounting tube.

[0006] Preferably, the sliding mechanism includes a rectangular column, with sliding frames fixedly installed at both ends of the rectangular column. The two sliding frames are slidably installed on two parallel connecting columns. A threaded hole is provided on the inner wall of one of the sliding frames, and a fixing bolt is installed in the threaded hole. A slider is slidably sleeved on the rectangular column, and the slider is fixedly installed on the side of the L-shaped plate.

[0007] Preferably, the fixing mechanism includes an external thread on the outer side of the top end of the mounting tube, a threaded rotating sleeve is threaded on the external thread, an annular groove is formed at the bottom of the threaded rotating sleeve, and a cylinder is fixedly installed on the top of the L-shaped plate, with the top end of the cylinder extending into the annular groove.

[0008] Preferably, the limiting mechanism includes a threaded fixing sleeve fixedly installed on the side of the mounting tube, a stud is installed in the threaded fixing sleeve, an avoidance hole is opened on the inner wall of the mounting tube, one end of the stud passes through the avoidance hole and is rotatably installed with an arc-shaped pressure plate, and the side of the arc-shaped pressure plate contacts the side of the hand handle.

[0009] Preferably, two guide holes are provided on the inner wall of the mounting tube, and guide rods are slidably installed in both guide holes. One end of each guide rod is fixedly installed on the side of the arc-shaped pressure plate.

[0010] Preferably, a knob is fixedly installed at the end of the stud away from the arc-shaped pressure plate.

[0011] Preferably, the mounting tube is vertically arranged, and the side of the mounting tube contacts one inner wall of the L-shaped plate.

[0012] Preferably, the positions of the two sliders are staggered, the positions of the two rectangular pillars are staggered, and the two rectangular pillars are perpendicular.

[0013] In summary, the technical effects and advantages of this utility model are as follows: The FFU fan wind speed testing device of this application can flexibly adjust the horizontal position of the anemometer probe through a double sliding mechanism that is perpendicular to each other, so as to adapt to the air outlet testing requirements of different specifications of FFU fans; the limiting mechanism in the mounting tube can firmly fix the hand handle, so as to avoid the probe shaking during the test and affect the accuracy of the data. Furthermore, the mounting tube can be easily rotated through the fixing mechanism, so the probe can be put in and taken out without lifting the fan, making the operation more labor-saving. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A first-view perspective stereoscopic view of a wind speed testing device for an FFU (Fan Filter Unit) fan; Figure 2 A second-view perspective stereoscopic view of a wind speed testing device for an FFU (Fan Filter Unit) fan; Figure 3 A perspective view showing the connection between the anemometer body, handheld lever, external thread, mounting tube, and threaded rotating sleeve. Figure 4 A first-view perspective perspective view showing the threaded rotating sleeve separated from the mounting tube; Figure 5 This is a second-view perspective perspective view showing the threaded rotating sleeve separated from the mounting tube.

[0016] In the diagram: 1. Placement plate; 2. Rectangular column; 3. Connecting column; 4. Support leg; 5. Slider; 6. L-shaped plate; 7. FFU fan body; 8. Anemometer body; 9. Anemometer probe; 10. Sliding frame; 11. Fixing bolt; 12. Hand handle; 13. External thread; 14. Mounting tube; 15. Threaded rotating sleeve; 16. Guide rod; 17. Arc-shaped pressure plate; 18. Threaded fixing sleeve; 19. Knob; 20. Stud; 21. Rotating shaft; 22. Mounting plate; 23. Cylinder; 24. Annular groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 5 The embodiments provided by this utility model are as follows: A wind speed testing device for an FFU fan includes a placement plate 1, four support legs 4 are fixedly installed on the bottom of the placement plate 1, two adjacent support legs 4 are fixedly connected by connecting columns 3, and two sliding mechanisms are installed on the four connecting columns 3, with the sliding directions of the two sliding mechanisms being perpendicular to each other. The same L-shaped plate 6 is installed on the two sliding mechanisms. A mounting plate 22 is fixedly installed on the bottom of the L-shaped plate 6. A rotating shaft 21 is rotatably installed on the side of the mounting plate 22. A mounting tube 14 is fixedly installed on one end of the rotating shaft 21. A fixing mechanism is installed on the mounting tube 14. The fixing mechanism is installed in conjunction with the L-shaped plate 6. An anemometer body 8 is mounted on one side of the placement plate 1. An anemometer probe 9 is mounted on the anemometer body 8. A handheld rod 12 is fixedly mounted on the bottom of the anemometer probe 9. One end of the handheld rod 12 extends into the mounting tube 14. A limiting mechanism for limiting the handheld rod 12 is installed inside the mounting tube 14. The anemometer body 8 is model TSI8715.

[0019] like Figure 1 As shown, the sliding mechanism includes a rectangular column 2, with sliding frames 10 fixedly installed at both ends of the rectangular column 2. The two sliding frames 10 are slidably mounted on two parallel connecting columns 3. One of the sliding frames 10 has a threaded hole on its inner wall, with a fixing bolt 11 threaded into the hole. A slider 5 is slidably fitted onto the rectangular column 2, and the slider 5 is fixedly mounted on the side of the L-shaped plate 6. When the measurement position needs to be adjusted, the two fixing bolts 11 can be loosened, allowing the two sliding frames 10 to slide. This allows adjustment of the position of the two rectangular columns 2, which in turn adjusts the position of the L-shaped plate 6 and the handheld rod 12. Changes in the position of the handheld rod 12 change the position of the anemometer probe 9, meeting the detection requirements at different positions.

[0020] like Figure 4 and Figure 5 As shown, the fixing mechanism includes an external thread 13 located on the outer side of the top end of the mounting tube 14. A threaded rotating sleeve 15 is threaded onto the external thread 13. An annular groove 24 is formed at the bottom of the threaded rotating sleeve 15. A cylinder 23 is fixedly mounted on the top of the L-shaped plate 6, with the top end of the cylinder 23 extending into the annular groove 24. Rotating the threaded rotating sleeve 15 causes it to spiral upward, thereby moving the cylinder 23 out of the annular groove 24. At this time, the mounting tube 14 can be rotated. Rotating the mounting tube 14 so that it faces the worker allows the anemometer probe 9 to be removed, thus moving the hand lever 12 out of the mounting tube 14 for easy removal of the anemometer probe 9.

[0021] like Figure 4 and Figure 5As shown, the limiting mechanism includes a threaded fixing sleeve 18 fixedly installed on the side of the mounting tube 14. A stud 20 is threadedly installed inside the threaded fixing sleeve 18. An clearance hole is provided on the inner wall of the mounting tube 14. One end of the stud 20 passes through the clearance hole and is rotatably mounted with an arc-shaped pressure plate 17. The side of the arc-shaped pressure plate 17 contacts the side of the hand handle 12. Two guide holes are provided on the inner wall of the mounting tube 14. Guide rods 16 are slidably installed in both guide holes. One end of the two guide rods 16 is fixedly installed on the side of the arc-shaped pressure plate 17. A knob 19 is fixedly installed on the end of the stud 20 away from the arc-shaped pressure plate 17. When it is necessary to disassemble the anemometer probe 9, after holding the anemometer probe 9 with your hand, turn the knob 19 to drive the stud 20 to rotate. The rotation of the stud 20 causes the arc-shaped pressure plate 17 to separate from the side of the hand handle 12, and the hand handle 12 loses its fixation.

[0022] like Figure 4 and Figure 5 As shown, the mounting tube 14 is vertically positioned, with its side contacting the inner wall of one side of the L-shaped plate 6. The vertical positioning of the mounting tube 14 ensures that the anemometer probe 9 is also vertically positioned, facilitating wind speed testing.

[0023] like Figure 1 As shown, the two sliders 5 are staggered, the two rectangular pillars 2 are staggered, and the two rectangular pillars 2 are perpendicular. The advantage of this arrangement is that the two rectangular pillars 2 will not touch, thus not affecting the sliding of the L-shaped plate 6.

[0024] Working principle: In use, the top of the placement plate 1 is provided with a placement slot, and the inner wall of the placement slot is provided with a rectangular hole. The placement slot is used to place the FFU fan body 7. After the FFU fan body 7 is placed, the power supply of the FFU fan body 7 is turned on, and then the FFU fan body 7 runs. The anemometer probe 9 is located below the air outlet of the FFU fan body 7. The wind speed can be measured through the setting of the anemometer body 8. When the measurement position needs to be adjusted, the two fixing bolts 11 can be loosened, so that the two sliding frames 10 can slide, thereby adjusting the position of the two rectangular columns 2, and then adjusting the position of the L-shaped plate 6 and the hand lever 12. The position of the hand lever 12 changes, thereby changing the position of the anemometer probe 9 to meet the detection requirements of different positions. When it is necessary to disassemble the anemometer probe 9, hold the anemometer probe 9 with your hand, turn the knob 19 to drive the stud 20 to rotate. The rotation of the stud 20 causes the arc-shaped pressure plate 17 to separate from the side of the hand handle 12. The hand handle 12 is no longer fixed. Put the anemometer probe 9 down so that the anemometer probe 9 contacts the top of the support leg 4. You can rotate the threaded rotating sleeve 15 to make it spiral upward, so that the cylinder 23 moves out of the annular groove 24. At this time, the mounting tube 14 can be rotated. Rotate the mounting tube 14 so that it faces the worker, and then take out the anemometer probe 9 so that the hand handle 12 moves out of the mounting tube 14, making it easy to remove the anemometer probe 9.

[0025] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wind speed testing device for an FFU (Fan Filter Unit) fan, characterized in that: Includes a placement plate (1), the bottom of which is fixedly installed with four support legs (4), two adjacent support legs (4) are fixedly connected by connecting columns (3), and two sliding mechanisms are installed on the four connecting columns (3), the sliding directions of the two sliding mechanisms are perpendicular to each other; The same L-shaped plate (6) is installed on both sliding mechanisms. An installation plate (22) is fixedly installed on the bottom of the L-shaped plate (6). A rotating shaft (21) is rotatably installed on the side of the installation plate (22). An installation tube (14) is fixedly installed on one end of the rotating shaft (21). A fixing mechanism is installed on the installation tube (14). The fixing mechanism is installed in conjunction with the L-shaped plate (6). An anemometer body (8) is provided on one side of the placement plate (1). An anemometer probe (9) is provided on the anemometer body (8). A handheld rod (12) is fixedly installed at the bottom of the anemometer probe (9). One end of the handheld rod (12) extends into the mounting tube (14). A limiting mechanism for limiting the handheld rod (12) is installed in the mounting tube (14).

2. The wind speed testing device for an FFU fan according to claim 1, characterized in that: The sliding mechanism includes a rectangular column (2), and sliding frames (10) are fixedly installed at both ends of the rectangular column (2). The two sliding frames (10) are slidably installed on two parallel connecting columns (3). A threaded hole is opened on the inner wall of one of the sliding frames (10), and a fixing bolt (11) is installed in the threaded hole. A slider (5) is slidably sleeved on the rectangular column (2), and the slider (5) is fixedly installed on the side of the L-shaped plate (6).

3. The wind speed testing device for an FFU fan according to claim 1, characterized in that: The fixing mechanism includes an external thread (13) on the outer side of the top end of the mounting tube (14), a threaded rotating sleeve (15) is threaded on the external thread (13), an annular groove (24) is opened at the bottom of the threaded rotating sleeve (15), and a cylinder (23) is fixedly installed on the top of the L-shaped plate (6), with the top end of the cylinder (23) extending into the annular groove (24).

4. The wind speed testing device for an FFU fan according to claim 1, characterized in that: The limiting mechanism includes a threaded fixing sleeve (18) fixedly installed on the side of the mounting tube (14). A stud (20) is installed in the threaded fixing sleeve (18). An avoidance hole is provided on the inner wall of the mounting tube (14). One end of the stud (20) passes through the avoidance hole and is rotatably installed with an arc-shaped pressure plate (17). The side of the arc-shaped pressure plate (17) contacts the side of the hand handle (12).

5. The wind speed testing device for an FFU fan according to claim 4, characterized in that: Two guide holes are provided on the inner wall of the mounting tube (14), and guide rods (16) are slidably installed in both guide holes. One end of each guide rod (16) is fixedly installed on the side of the arc-shaped pressure plate (17).

6. The wind speed testing device for an FFU fan according to claim 4, characterized in that: A knob (19) is fixedly installed at the end of the stud (20) away from the arc-shaped pressure plate (17).

7. The wind speed testing device for an FFU fan according to claim 1, characterized in that: The mounting tube (14) is vertically arranged, and the side of the mounting tube (14) is in contact with the inner wall of one side of the L-shaped plate (6).

8. The wind speed testing device for an FFU fan according to claim 2, characterized in that: The positions of the two sliders (5) are staggered, the positions of the two rectangular pillars (2) are staggered, and the two rectangular pillars (2) are perpendicular.

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